Problems with a Lafayette polygraph machine previously used by the Beaufort County Sheriff's Office were fixed by replacing cables that measured sweat, according to the Sheriff's Office.
No date was given for the repair to the LX4000 polygraph machine, but a news release Tuesday said the Sheriff's Office purchased the first of two, newer LX5000 models about a year after they received the new cables, which fixed an issue with the "electro-dermal activity" sensor n the older machine.
Lt. Matt Averill, a polygraph examiner for the Sheriff's Office, said in an email that the problem in the LX4000 seemed "to have been resolved in the LX5000."
The Sheriff's Office used LX4000 machines for eight years, from 2002 to 2010, according to Averill.
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One of the primary reasons for purchasing the LX4000 was that its program was Windows-based, the release said. Most other polygraph machines available at the time were used Microsoft's older Data Operating System.
The department later chose to upgrade to the LX5000 because its polygraph examiners were already trained on the machine, its components and software, according to the release.
Averill and Capt. Toby McSwain, a regional sales representative for Lafayette, graduated from polygraph school in 1999 and completed a state-mandated internship with the S.C. State Law Enforcement Division in 2000, the release said.
County attorney Joshua Gruber said last week that McSwain's off-duty work for Lafayette was approved by the Sheriff's Office when McSwain began working for the company in July 2003, and it did not present a conflict of interest.
McSwain now oversees the Southern Enforcement Branch of the Sheriff's Office and is the chairman of the board for the American Association of Police Polygraphists. On July 1, he will become the new head of security for Sea Pines.
Averill had said the Sheriff's Office became Lafayette customers after its purchase of an LX3000 in 1999, but the release said the department's business history with Lafayette stretches back further. Prior to Averill and McSwain's tenure as polygraph examiners, another examiner conducted tests for the Sheriff's Office using the company's analog-based FactFinder II instrument, according to the release.